Clinical Trials About "Reduced visual acuity associated with decline reading efficiency" RSS

09:58 EST 16th December 2018 | BioPortfolio

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Showing "Reduced visual acuity associated with decline reading efficiency" Clinical Trials 1–25 of 7,200+

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Visual Discomfort and Reading

Reading can be an uncomfortable and difficult task for some people. Symptoms include unpleasant somatic and perceptual effects, such as eye-strain, headache, and blurred text, despite normal visual acuity. This condition has been called Visual Discomfort, but little is known about the symptoms and frequency of reading problems associated with this disorder. Several studies have proposed that Visual Discomfort is caused by increased noise in the visual system due to spreading co...

Correlation Between Visual Acuity Measurements, Quality of Life and Morphological Parameters in Wet AMD Patients

Patient-reported vision-related quality of life (QOL) outcomes are increasingly incorporated into clinical trials of new treatments for age-related macular degeneration (AMD). In patients with central visual field defects they often do not correlate with distance visual acuity changes as evaluated according to the Early Treatment Diabetic Retinopathy Study (ETDRS) protocol. Therefore there is the need for better correlated visual acuity (VA) outcome measures for these patients....

Evaluation of VisionQuest 20/20, a Visual Acuity Testing Software

This study involves the use of VisionQuest 20/20 which is a new software program to test visual acuity in children. The purpose of this study is to compare the results of VisionQuest 20/20 to two other ways to measure visual acuity. The two other tests are a standard eye exam by an ophthalmologist and electronic visual acuity (EVA) testing, a computerized version of a standard eye test. It is important to identify vision problems in children as early as possible. These ...

A Multi Focal Visual Outcome Study Using Different Near Additions

A multi-centre non-randomized clinical investigation to assess multifocal visual outcomes using different near additions, for the treatment of aphakia after cataract removal.

Visual Performance of New Apodized Diffractive Multifocal IOL With Addition of Plus Three

The purpose of the study is to determine whether implantation of a multifocal IOL with a modified addition at lens plane(Restor +3) results in better intermediate visual acuity with similar performance at distance and near compared to other multifocal IOL with similar design but with higher addition at lens plane. Patient's contrast sensitivity of vision and best reading distance following Restor +3 implantation were also assessed. Study hypothesis: the implantation of an intr...

Low Vision Patients' Preference for Colored Filters and Illumination for Near Reading Determined by the LuxIQ/2

The effect of tinted filters and illumination on the visual performance of patients with low vision (i.e., individuals with reduced vision that is uncorrectable with glasses, surgery or treatments) has been a topic of research and discussion for many years, yet there is no current consensus or practice standard for the evaluation and recommendation of colored filters and/or illumination intensity. Anecdotally, there have been many subjective reports of improvement in visual fun...

Dyslexics' Visual Attention Field

dyslexia is often considered like a phonological deficit but some researches show that a visual attention (V-A) deficit can occur in dyslexia. The investigator want to show that some dyslexics have a reduced V-A field in visual search when the investigator use separable feature (letter-like). If the investigator demonstrate that, he will show that V-A deficit can be transpose to an ability acquired before reading, the visual search. Therefore, the V-A deficit can't be a ...


Nurses Ability to Assess Visual Acuity in Geriatric Consultation

Nurses participate to geriatric evaluations for falling patients. For these patients, it is recommended to evaluate,especially, visual acuity but this is not currently done because it is difficult to systematically combine with an ophthalmologic consultation. The HAS french recommendations propose to detect visual acuity deficiency using Monoyer and Parinaud scales, without specifying the professional qualification. According to the nurse competence decree of State Graduates, ...

Binocular Visual Therapy and Video Games for Amblyopia Treatment.

Amblyopia, or lazy eye, is best defined by the AAO as a unilateral or bilateral reduction of the best corrected visual acuity that occurs in the setting of an otherwise normal eye, or a structural abnormality involving the eye or visual pathway with reduction in visual acuity that cannot be attributed only to the effect of the structural abnormality. Which causes an abnormal visual experience early in life, with consequences such as deficiencies in the ability to perceive contr...

Validation of the Utility of an Intelligent Visual Acuity Diagnostic System for Children

Visual development during early childhood is a vital process. Examining the visual acuity of children is essential for the early detection of visual abnormality, but performing such an assessment in children is challenging. Here, the investigators developed a human-in-the-loop artificial intelligence (AI) paradigm that combines traditional vision examination and AI with integrated software and hardware, thus making the vision examination easy to perform. The investigator also e...

A Trial of Patients With a Charles Bonnet Syndrome

Charles Bonnet Syndrome (CBS) is defined by the occurence of visual hallucinations (VH) in the absence of any mental disorder. Elderly patients with reduced visual acuity due to ophthalmic diseases are most affected. Conditions are often associated with the syndrome of age-related macular degeneration, cataract or glaucoma. Existing data on the syndrome's prevalence in Europe reveal diverse results. Aim of this study was to assess the prevalence of CBS in patients with low visu...

Validation of Romanian Version of Radner Reading Charts

Interventional, parallel groups, single center trial with a prospective design

Active Cue-Training in Neglect

The presented study investigates standardized visual cueing in reading and visual spatial task as a treatment method for spatial neglect. In a randomized controlled design patients receive either cued reading and visual spatial tasks (intervention) or treatment which is unspecific to neglect (control). In the intervention condition, patients with left-sided neglect receive intense training, including reading and visual spatial task with standardized and adapted visual cueing b...

Visual Acuity and Optical Coherence Tomography One Year After Peeling of Epiretinal Membranes

Improvement in visual acuity and retinal anatomy one year after surgery is assessed and compared to data preoperative and 3 months after surgery

Strabismus Surgery and Driving Ability

The strabismus impacts binocular visual acuity and stereoscopy. Thus, driving capacities of patients with strabismus may be reduced. The goal of this work is to study the possible amelioration of driving ability after strabismus surgery and to compare the driving capacities of patients with strabismus to a normal population; Patients will be tested before and after strabismus surgery using a driving simulator, binocular visual field and binocular visual acuity.

Epiretinal Fibrosis, Effect of Early Surgery

The goal of this randomized clinical trial is to investigate when it is optimal to treat the eye disease epiretinal fibrosis. Hypothesis: In a population of patients with symptomatic idiopathic epiretinal fibrosis and visual acuity above 0.4, the best long term outcome measured by visual acuity is achieved by early surgery compared to periodic controls until a continual loss of visual acuity has been ensure followed by surgery.

Peripheral Reading

The purpose of this study is to evaluate reading performance in the visual periphery by simulating central vision loss using a computer-controlled gaze-contingent display with an eye tracker. Participants will read a page of text at a comfortable rate. Several manipulations hypothesized to improve reading will be tested, such as an inverted-text "spotlight" of a single word that follows the participant's gaze.

Standard Amblyopia Therapy in Adult Amblyopes

Amblyopia is characterized by a reduction in visual acuity, contrast sensitivity, and binocular visual functions. The two main causes of amblyopia are anisometropia and strabismus which alter the synaptic connections between neurons along the visual pathway. Current treatment for amblyopia has indicated that the younger the amblyope, the greater the effect of treatment. The purpose of this study is to determine if standard amblyopia treatment improved visual acuity in adult amb...

Visual Stimulation of Preterm Infants

Introduction: Prematurity has been more frequent in industrialized countries, which is a risk factor for delay in child development. Delays in the development of visual system could be highlighted. However, studies that evaluate or stimulate the visual system in preterm infant (PT) at an early age and hospitalized in a neonatal unit care (NUC) are scarce. Objective: To compare visual acuity of PT and full term (FT) infants. In addition, to verify the effect of the early visual...

Reading Together: How to Promote Children's Language Development Using Family-based Shared Book Reading

The aim of this project is to determine how shared reading promotes child language development, and to use this knowledge to make it an effective language-boosting tool for children from all social and economic backgrounds.

Correction of Hyperopia in Children Study (CHICS)

Hyperopia (farsightedness) has been reported to be associated with reduced visual perceptual and reading abilities. However, there is controversy regarding whether or not to prescribe for low to moderate amounts of hyperopia. The Correction of Hyperopia In Children Study (CHICS) is a placebo-controlled, randomized, masked investigation of the effect of spectacle correction for moderate amounts of hyperopia on visual function, symptoms, attention, and reading skills in children.

Historical Case Record Survey of Visual Acuity Data From Patients With Leber's Hereditary Optic Neuropathy (LHON)

The purpose of this survey is to collect visual acuity data from patients with LHON in order to establish the clinical course (natural history) and visual acuity outcomes in patients with a genetically confirmed diagnosis of LHON. In addition, this survey will generate data that will serve as comparator for the open-label study SNT-IV-006.

Low Vision Intervention Trial II (LOVIT II)

This study will determine if the interdisciplinary team low vision rehabilitation program is more effective than basic low vision care provided by an optometrist working alone in improving visual reading ability in veterans with macular diseases and best corrected visual acuity of 20/50 to 20/100.

Ability of Patients With Low Vision to Properly Instill Eye Drops

The investigators are interested in seeing how people with low vision (decreased visual acuity or restricted visual fields) instill eye drops into their own eyes. The investigators hypothesis is that this population will have more difficulty with self-instillation of drops than a better-seeing population. The investigators aim to explore whatever factors may be involved in preventing this population from getting prescribed eyedrops into their eyes, whether it is more related to...

App-delivered Therapy for Arabic Readers With Hemianopic Alexia

Hemianopia refers to compromised vision in one half of the visual field, in either one or both eyes. Hemianopic Alexia (HA) is a reading disorder related to such impairment, usually caused by stroke or head injury. In order to read, participants have to move their eyes along a line of text three to four times per second. Such eye movements are called saccades. One makes use of peripheral visual information to the right (if reading from left to right, e.g., in English) or to the...

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